isn't your family worth america's number-one security company? current adt customers call for special upgrade saveings. after buying two of everything, it was nice to only need one security system -- adt. [ male announcer ] get adt installed for just $99. and ask about adt pulse, advanced home management here today. adt. always there. >>> claims of a chemical weapons attack. the syrian opposition claiming hundreds, hundreds were killed overnight. the syrian government denying the accusation. we are live with this gruesome and developing story. >>> murder for sport. three teenagers charged with killing a college athlete because they were bored. we're going to show you the chaotic courthouse scene coming up next. >>> and bear break-ins, plaguing one nevada community. but residents aren't allows them to do anything about it. we'll tell you why. >> welcome back. i'm zoraida sambolin. >> i'm christine romans in for john berman. >> and we have breaking news from syria. a warning some viewers might find these disturbing. rebels claim hundreds are dead a